Today, the trend of the index was divided, with the Shanghai index up 0.8%, the Shenzhen composite index up 0.19% and the gem index down 0.82%. Data security, coal, airport shipping, banking, green power, underground pipe network and other sectors led the increase. Lets Holdings Group Co.Ltd(002398) said that the antibody test kit of Aode biology, a joint-stock company, is used for rapid screening of covid-19, and the products are mainly sold to European countries; Shanghai Hile Bio-Technology Co.Ltd(603718) indicates that the subsidiary Jiemen biology has the R & D ability of covid-19 antigen and antibody; Beijing Philisense Technology Co.Ltd(300287) said that the company currently provides traceability services for some suppliers of prefabricated dishes; Zhangjiagang Haiguo New Energy Equipment Manufacturing Co.Ltd(301063) said that at present, the company has full orders on hand; Loncin Motor Co.Ltd(603766) said that the company's ep500 portable energy storage power supply was officially released on November 25, 2021. It is currently in the final preparation stage for mass production and is expected to be listed in the first half of this year.